SERVICE PROCEDURE MAINTENANCE
4-30
METHOD OF TILTING AND SWINGING COOLER
1. Turn the starting switch to the OFF position and stop the engine.
2. Pull lever (3) down to release the lock, then tilt aftercooler
(1).
Turn the knob (4) counterclockwise to release the lock, then
swing oil cooler (2).
If necessary, band (5) can be fitted to oil cooler (2) to hold it
in position after swinging it.
3. Use the steam jet nozzle to blow out the mud, dirt, or leaves
clogging the radiator fins or cooler fins.
NOTICE
If the steam jet nozzle is brought to close to the radiator fins, it may damage the fins, so keep the nozzle a
suitable distance away from the fins when cleaning.
4. Check the rubber hose. Replace with a new one if the hose is found to have cracks or to be hardened by age-
ing.
Further, check hose clamps for looseness.
5. Do as follows to blow out the mud or dirt that has fallen to the bottom.
6. Loosen wing bolts (6), use hook (7) to slide cleaning covers
(8), and open the left and right covers.
7. Insert the air nozzle and blow the dirt out to the front of the
machine.
REMARK
Steam or water can be used instead of compressed air.
8. After blowing out the dirt, install left and right cleaning cov-
ers (8).
9. After completing the cleaning, push the bottom of aftercooler (1) to lock it, then push the front of oil cooler (2) to
lock it.
Check that they are both securely locked in position.
AFTERCOOLER TILT SWITCH
(If equipped)
For machines with the optional equipment, Step 2 of the
method for tilting and swinging the cooler can be used to tilt the
aftercooler electrically.
Press aftercooler switch (2) on the left side of the engine room
to tilt the aftercooler electrically approx. 17 degrees; press (b)
to return the aftercooler to its original position.
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